1275250105 has 8 divisors (see below), whose sum is σ = 1530571392. Its totient is φ = 1020019248.

The previous prime is 1275250057. The next prime is 1275250133. The reversal of 1275250105 is 5010525721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1275250105 - 2²⁵ = 1241695673 is a prime.

It is a super-2 number, since 2×1275250105² = 3252525660605022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13734 + ... + 52336.

It is an arithmetic number, because the mean of its divisors is an integer number (191321424).

Almost surely, 2^1275250105 is an apocalyptic number.

It is an amenable number.

1275250105 is a deficient number, since it is larger than the sum of its proper divisors (255321287).

1275250105 is an equidigital number, since it uses as much as digits as its factorization.

1275250105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45215.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 1275250105 is about 35710.6441414881. The cubic root of 1275250105 is about 1084.4223403993.

Adding to 1275250105 its reverse (5010525721), we get a palindrome (6285775826).

The spelling of 1275250105 in words is "one billion, two hundred seventy-five million, two hundred fifty thousand, one hundred five".